[7] In 2003[8][9] and in 2008,[10] Marchessault was nominated as a Tier 2 Canada Research Chair in Art, Digital Media and Globalization held at York University.
In 2012, she received the prestigious Trudeau Fellowship to support her research and curation in the area of public art and urban cultures.
[17] From 2013 to 2015, she acted as the inaugural director of Sensorium: Centre for Digital Arts & Technology that supports cross-disciplinary work and collaborative research at York University.
[18][19] As a member of the Public Access Curatorial Collective,[20] Marchessault co-curated numerous large-scale art exhibitions in Toronto: Being on Time (2000),[21] The Leona Drive Project (2009),[22] Museum for the End of the World (2012)[23] and Land|Slide: Possible Futures (2013).
[24][25] The latter was named as one of the Canada's top "10 Shows to See This Fall" by Canadian Art magazine[26] and blogTO,[27] and was invited to exhibit at the 2013-14 Hong Kong-Shenzhen Bi-City Biennale of Urbanism/Architecture.